CA1227235A - Whirl spray nozzle - Google Patents
Whirl spray nozzleInfo
- Publication number
- CA1227235A CA1227235A CA000437931A CA437931A CA1227235A CA 1227235 A CA1227235 A CA 1227235A CA 000437931 A CA000437931 A CA 000437931A CA 437931 A CA437931 A CA 437931A CA 1227235 A CA1227235 A CA 1227235A
- Authority
- CA
- Canada
- Prior art keywords
- whirl chamber
- post
- chamber
- liquid
- air core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
- B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
- B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
- B05B1/3426—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels emerging in the swirl chamber perpendicularly to the outlet axis
Abstract
ABSTRACT OF THE DISCLOSURE
A spray nozzle for producing a hollow conical liquid spray having a body formed with a cylindrical whirl chamber having a tangentially disposed liquid inlet passage and an orifice cap removably mountable at the end of the whirl champ bier formed with a spray discharge orifice of the desired configuration. The nozzle body includes an upstanding post concentrically disposed within the whirl chamber for guiding pressurized liquid in a tangential direction about the whirl chamber, and the post has a recessed upper end for receiving the air core of whirling liquid within the chamber to retain the proper axial position of the air core and to prevent air core damage to the nozzle body.
A spray nozzle for producing a hollow conical liquid spray having a body formed with a cylindrical whirl chamber having a tangentially disposed liquid inlet passage and an orifice cap removably mountable at the end of the whirl champ bier formed with a spray discharge orifice of the desired configuration. The nozzle body includes an upstanding post concentrically disposed within the whirl chamber for guiding pressurized liquid in a tangential direction about the whirl chamber, and the post has a recessed upper end for receiving the air core of whirling liquid within the chamber to retain the proper axial position of the air core and to prevent air core damage to the nozzle body.
Description
~27~3~i DESCRIPTION OF TOE INVENTION
The present invention relates generally to spray nozzles, and more particularly, to spray nozzles of the type that produce a hollow cone spray.
In such spray nozzles, a pressurized liquid stream is introduced tangentially into a cylindrical whirl chamber to impart a rapid swirling movement to the liquid, with the resulting centrifical forces producing a spray of hollow, conical or similar shape as it emerges from a discharge oft-flee of the nozzle. The whirling movement of the liquid creates an elongated hollow air core within the spray which extends to the bottom of the whirl chamber. the lower end or vortex of the air core can create significant wear to the bottom of the nozzle body, and in some instances bore a hole through the nozzle body in a relatively short time. twill various whirl chamber designs have been proposed from minimize in air core wear in such spray nozzles, these designs often have not have been susceptibly to easy manufacture by convent tonal techniques, such as plastic injection molding or metal machining, and sometimes have adversely affected the spray characteristics of the nozzle.
In addition to wear prevention considerations, for example, it is important to design both the inlet orifice and the whirl chamber such that the air core remains in centered axial relation to the discharge orifice in order to achieve uniform liquid distribution in the hollow spray pattern.
Because of unbalanced forces resulting from the tangential introduction of liquid into the whirl chamber, there is a tendency for the lower portion of the air core in the whirl chamber to be shifted away from the axis of the discharge orifice. Moreover, even small variations in the inlet orifice or the bottom wall of the whirl chamber can the proper , :
, .
'I ~Z7'~3~
, ., air core position, and -thus, the uniformity of the spray pattern. While various approaches again have been proposed for centering the elf core in the whirl chamber, such prior designs in many instances have been objectlonal from the standpoint of permitting excessive air core wear, as being relatively costly to produce, or not being adaptable to accommodate changes in size or capacity of the nozzle.
The problems of the prior art are overcome by the present invention which provides a spray nozzle for product lung a hollow conical liquid spray pattern having a centralalr core comprising a body formed with a whirl chamber having a circular side wall and a bottom wall, the body having an inlet passage for directing liquid in a substanti-ally tangential direction into the circular whirl chamber, means closing the top of the chamber and defining a circus far spray discharge orifice disposed coccal with the circular side walls of the whirl chamber, a post extending upwardly from the whirl chamber bottom wall, the post having a diameter of about one half the diameter of the whirl chamber and extending upwardly to an elevation about level wealth the upper perimeter of the inlet passage for guiding pressurized liquid introduced into the whirl chamber from the inlet passage in proper whirling direction about -the circular side wall of the whirl chamber, and the post being formed with a recess in the upper end thereof which has an uninterrupted generally circular outermost perimeter and which extends partially into the post in aligned relation-skip to the axis of the discharge orifice for receiving the lcm/~-~/f I- 2 -I
~.~Z'7~3~
lowermost end of the air core of the whirling liquid within the chamber for retaining the proper axial position of the air core and whirling liquid without substantial diffusion of the hollow cone spray pattern and for preventing damage to the body from the air core and whirling liquid.
Other features and advantages of the invention will become apparent upon reading the following detailed description and upon reference to the drawings, in which:
FIGURE 1 is a top plan of an illustrative spray nozzle embodying the present invention;
Fig. 2 is a vertical section taken in the plane of line 2-2 in Fig. it and Fig. 3 is a horizontal section taken in the plane of line 3-3 in Fig. 2.
While the invention is susceptible of various modifications and alternative constructions, a certain illustrated embodiment thereof has been shown in the draw-ins and will be described below in detail. It should be understood, however, that there is no intention to limit the invention to the specific form disclosed, but on the con-tray, the invention is to cover all modifications, alter-native constructions and tam/ pa -~Z'7~3~
equivalents falling within the spirit and scope of the invent lion.
Referring now more particularly to the drawings, there is shown an illustrative spray nozzle 10 embodying the present invention. The nozzle 10 includes a main body 11 formed with a cylindrical whirl chamber 12 and an inlet passage 14 extend- _ in tangentially and at a right angle to the cylindrical whirl chamber 12. The inlet passage 14 preferably communicates with a lower portion of the whirl chamber 12, entering the whirl chamber at a point slightly above a bottom wall 13 thereof.
The nozzle body 11 in this instance includes an inlet connector end 15 extending to one side thereof formed with an internally threaded bore 16 in communication with the inlet passage 14 for coupling to the threaded end of a fluid supply line 18.
The body 11 has an internally threaded discharge end 19 which receives the threaded end of an orifice cap 20 formed with a discharge orifice 21 that is in coaxial communication with the whirl chamber 12. The outer end of the orifice cap 20 may be formed with appropriate means, such as circumferential spaced ribs 22, which facilitate turning of the cap for tight-eying and removal from the body 11.
The discharge orifice 21 of the illustrated cap 20 in-eludes an inwardly tapered orifice section aye extending up-warmly from the whirl chamber 12 and into communication with a relatively short length, reduced diameter, cylindrical orifice section 21b. The upper face of the orifice cap 20 is formed with a downwardly and outwardly tapered portion 21c about the periphery of the cylindrical orifice section 21b. As is known in the art, the configuration of the discharge orifice 21 may vary according to the spray angle and configuration desired, and in the illustrated embodiment, the cap 20 is readily removable and replaceable by unscrewing the cap from the nozzle body 11.
. _ . . _ _ _ .. . ., . . .. .. . . _ _ _ _ , Pressurized liquid introduced into the supply line 18 will tangentially enter the whirl chamber 12 through the inlet passage 14, causing a rapid swirling movement to be imparted to the liquid in the chamber. us liquid continues to be directed into the whirl chamber from the supply line, the swirling liquid in the chamber will be expelled outwardly through the discharge orifice 21 of the cap 20 in a centrally-open, rotating stream at a sufficient velocity to form a relatively thin, hollow cone spray 25, as indicated in Fig. 2.
The resulting air core within the hollow cone spray pattern extends through the nozzle discharge orifice 21 and into the whirl chamber 12 terminating in a lowermost vortex aye. The uniformity of volume and the direction of the spray projection, as is known in the art, is adversely affected if the axis of rotation of the liquid, and thus the air core, is varied with respect to the axis of the whirl chamber 12 and discharge orifice 21.
in accordance with the invention, the nozzle body has an axially disposed whirl chamber post extending upwardly from the bottom of the whirl chamber, which assists in guiding liquid introduced in the whirl chamber in the proper tangential direction and which is formed with a recessed upper end that retains the axial position of the swirling liquid within the chamber and minimizes air core wear. To this end, in the illustrated embodiment, the nozzle body 11 has an integrally formed upstanding post 28 which extends from the bottom 13 of the whirl chamber to an elevation about level with an upper periphery aye of the inlet passage 14, as shown in Fig. 2, such that the post extends substantially across one side of the path of the liquid being introduced into the whirl chamber.
The illustrated post 28 is approximately one-half the diameter of the whirl chamber 12, and the inlet passage 14, which may I I
have a diameter up to oriole that of the whirl chamber, in this case is of slightly smaller size. Pressurized liquid introduced into the whirl chamber through the inlet passage 14 thereby moves about a common side of the post 28, as best seen in Fig. 3, with the post tending to assist in guiding the liquid stream in the proper direction.
In keeping with the invention, upper end of -the whirl chamber post 28 is formed with a recess 29 which serves to retain the air core of the swirling liquid coccal in the whirl chamber so as to enhance the uniformity of the spray output, while minimizing air core wear to the nozzle body 11.
The illustrated recess 29 has a concave spherical shape, with an outer peripheral edge aye having a circular configuration concentrically located with respect to the discharge orifice 21. While other shapes of recesses may be employed, the recess 29 preferably should have a continuously curved, uninterrupted peripheral edge aye, which facilitates retention of the lower-most vortex of the air core without disrupting the whirling liquid or causing undue turbulence thereto.
In use of the nozzle of the present invention, it has been found that the recessed upstanding whirl chamber post 28 will effectively maintain the proper axial position of the air core without incurring significant air core wear. Moreover, it has been found that the basic nozzle design may be easily varied to accommodate different capacities without affecting the improved wear and spray characteristics of the nozzle.
For example, it has been found that the same basic nozzle body design may be utilized with different sized inlet passages 14 and with different orifice caps 20 while retaining all of the advantages of the invention. With a standard nozzle body design having the upstanding whirl chamber post extending to an elevation about level with the upper perimeter of the inlet . . _ _ . . _ . . . _ . _ _ . . . _ _ _ . _ _ _ _ _ _ , . _ . , . . . . .
~2'~.'3~
passage it, or slightly above such elevation, the same body can be used for nozzles with incrementally larger or smaller inlet passages.
It will be appreciated by one skilled in the art that the nozzle body will accordingly lend itself to economical product lion since variable size and capacity nozzles may be produced by altering only the inlet passage. It will also be apprise-axed that the nozzle body can be economically manufactured by conventional techniques. While in the illustrated embodiment a plastic injected molded nozzle body 11 has been shown with an integrally formed upstanding whirl chamber post 28, it will be understood that the nozzle body could be readily machined from stock or a metal casting. Moreover, although the thus-treated whirl chamber post is an integral part of the body, alternatively it could be a separate and replaceable item, fixed to the body by thread able engagement or the like.
From the foregoing, it can be seen that the whirl spray nozzle of the present invention is relatively simple and economical to produce, effectively controls air core wear and position, and is adapted to accommodate design variations for different inlet sizes and nozzle spray capacity.
_, _ , ,,, _,, , _ _ _ _ _ _ _ . _ _ . .. .... . . ..
The present invention relates generally to spray nozzles, and more particularly, to spray nozzles of the type that produce a hollow cone spray.
In such spray nozzles, a pressurized liquid stream is introduced tangentially into a cylindrical whirl chamber to impart a rapid swirling movement to the liquid, with the resulting centrifical forces producing a spray of hollow, conical or similar shape as it emerges from a discharge oft-flee of the nozzle. The whirling movement of the liquid creates an elongated hollow air core within the spray which extends to the bottom of the whirl chamber. the lower end or vortex of the air core can create significant wear to the bottom of the nozzle body, and in some instances bore a hole through the nozzle body in a relatively short time. twill various whirl chamber designs have been proposed from minimize in air core wear in such spray nozzles, these designs often have not have been susceptibly to easy manufacture by convent tonal techniques, such as plastic injection molding or metal machining, and sometimes have adversely affected the spray characteristics of the nozzle.
In addition to wear prevention considerations, for example, it is important to design both the inlet orifice and the whirl chamber such that the air core remains in centered axial relation to the discharge orifice in order to achieve uniform liquid distribution in the hollow spray pattern.
Because of unbalanced forces resulting from the tangential introduction of liquid into the whirl chamber, there is a tendency for the lower portion of the air core in the whirl chamber to be shifted away from the axis of the discharge orifice. Moreover, even small variations in the inlet orifice or the bottom wall of the whirl chamber can the proper , :
, .
'I ~Z7'~3~
, ., air core position, and -thus, the uniformity of the spray pattern. While various approaches again have been proposed for centering the elf core in the whirl chamber, such prior designs in many instances have been objectlonal from the standpoint of permitting excessive air core wear, as being relatively costly to produce, or not being adaptable to accommodate changes in size or capacity of the nozzle.
The problems of the prior art are overcome by the present invention which provides a spray nozzle for product lung a hollow conical liquid spray pattern having a centralalr core comprising a body formed with a whirl chamber having a circular side wall and a bottom wall, the body having an inlet passage for directing liquid in a substanti-ally tangential direction into the circular whirl chamber, means closing the top of the chamber and defining a circus far spray discharge orifice disposed coccal with the circular side walls of the whirl chamber, a post extending upwardly from the whirl chamber bottom wall, the post having a diameter of about one half the diameter of the whirl chamber and extending upwardly to an elevation about level wealth the upper perimeter of the inlet passage for guiding pressurized liquid introduced into the whirl chamber from the inlet passage in proper whirling direction about -the circular side wall of the whirl chamber, and the post being formed with a recess in the upper end thereof which has an uninterrupted generally circular outermost perimeter and which extends partially into the post in aligned relation-skip to the axis of the discharge orifice for receiving the lcm/~-~/f I- 2 -I
~.~Z'7~3~
lowermost end of the air core of the whirling liquid within the chamber for retaining the proper axial position of the air core and whirling liquid without substantial diffusion of the hollow cone spray pattern and for preventing damage to the body from the air core and whirling liquid.
Other features and advantages of the invention will become apparent upon reading the following detailed description and upon reference to the drawings, in which:
FIGURE 1 is a top plan of an illustrative spray nozzle embodying the present invention;
Fig. 2 is a vertical section taken in the plane of line 2-2 in Fig. it and Fig. 3 is a horizontal section taken in the plane of line 3-3 in Fig. 2.
While the invention is susceptible of various modifications and alternative constructions, a certain illustrated embodiment thereof has been shown in the draw-ins and will be described below in detail. It should be understood, however, that there is no intention to limit the invention to the specific form disclosed, but on the con-tray, the invention is to cover all modifications, alter-native constructions and tam/ pa -~Z'7~3~
equivalents falling within the spirit and scope of the invent lion.
Referring now more particularly to the drawings, there is shown an illustrative spray nozzle 10 embodying the present invention. The nozzle 10 includes a main body 11 formed with a cylindrical whirl chamber 12 and an inlet passage 14 extend- _ in tangentially and at a right angle to the cylindrical whirl chamber 12. The inlet passage 14 preferably communicates with a lower portion of the whirl chamber 12, entering the whirl chamber at a point slightly above a bottom wall 13 thereof.
The nozzle body 11 in this instance includes an inlet connector end 15 extending to one side thereof formed with an internally threaded bore 16 in communication with the inlet passage 14 for coupling to the threaded end of a fluid supply line 18.
The body 11 has an internally threaded discharge end 19 which receives the threaded end of an orifice cap 20 formed with a discharge orifice 21 that is in coaxial communication with the whirl chamber 12. The outer end of the orifice cap 20 may be formed with appropriate means, such as circumferential spaced ribs 22, which facilitate turning of the cap for tight-eying and removal from the body 11.
The discharge orifice 21 of the illustrated cap 20 in-eludes an inwardly tapered orifice section aye extending up-warmly from the whirl chamber 12 and into communication with a relatively short length, reduced diameter, cylindrical orifice section 21b. The upper face of the orifice cap 20 is formed with a downwardly and outwardly tapered portion 21c about the periphery of the cylindrical orifice section 21b. As is known in the art, the configuration of the discharge orifice 21 may vary according to the spray angle and configuration desired, and in the illustrated embodiment, the cap 20 is readily removable and replaceable by unscrewing the cap from the nozzle body 11.
. _ . . _ _ _ .. . ., . . .. .. . . _ _ _ _ , Pressurized liquid introduced into the supply line 18 will tangentially enter the whirl chamber 12 through the inlet passage 14, causing a rapid swirling movement to be imparted to the liquid in the chamber. us liquid continues to be directed into the whirl chamber from the supply line, the swirling liquid in the chamber will be expelled outwardly through the discharge orifice 21 of the cap 20 in a centrally-open, rotating stream at a sufficient velocity to form a relatively thin, hollow cone spray 25, as indicated in Fig. 2.
The resulting air core within the hollow cone spray pattern extends through the nozzle discharge orifice 21 and into the whirl chamber 12 terminating in a lowermost vortex aye. The uniformity of volume and the direction of the spray projection, as is known in the art, is adversely affected if the axis of rotation of the liquid, and thus the air core, is varied with respect to the axis of the whirl chamber 12 and discharge orifice 21.
in accordance with the invention, the nozzle body has an axially disposed whirl chamber post extending upwardly from the bottom of the whirl chamber, which assists in guiding liquid introduced in the whirl chamber in the proper tangential direction and which is formed with a recessed upper end that retains the axial position of the swirling liquid within the chamber and minimizes air core wear. To this end, in the illustrated embodiment, the nozzle body 11 has an integrally formed upstanding post 28 which extends from the bottom 13 of the whirl chamber to an elevation about level with an upper periphery aye of the inlet passage 14, as shown in Fig. 2, such that the post extends substantially across one side of the path of the liquid being introduced into the whirl chamber.
The illustrated post 28 is approximately one-half the diameter of the whirl chamber 12, and the inlet passage 14, which may I I
have a diameter up to oriole that of the whirl chamber, in this case is of slightly smaller size. Pressurized liquid introduced into the whirl chamber through the inlet passage 14 thereby moves about a common side of the post 28, as best seen in Fig. 3, with the post tending to assist in guiding the liquid stream in the proper direction.
In keeping with the invention, upper end of -the whirl chamber post 28 is formed with a recess 29 which serves to retain the air core of the swirling liquid coccal in the whirl chamber so as to enhance the uniformity of the spray output, while minimizing air core wear to the nozzle body 11.
The illustrated recess 29 has a concave spherical shape, with an outer peripheral edge aye having a circular configuration concentrically located with respect to the discharge orifice 21. While other shapes of recesses may be employed, the recess 29 preferably should have a continuously curved, uninterrupted peripheral edge aye, which facilitates retention of the lower-most vortex of the air core without disrupting the whirling liquid or causing undue turbulence thereto.
In use of the nozzle of the present invention, it has been found that the recessed upstanding whirl chamber post 28 will effectively maintain the proper axial position of the air core without incurring significant air core wear. Moreover, it has been found that the basic nozzle design may be easily varied to accommodate different capacities without affecting the improved wear and spray characteristics of the nozzle.
For example, it has been found that the same basic nozzle body design may be utilized with different sized inlet passages 14 and with different orifice caps 20 while retaining all of the advantages of the invention. With a standard nozzle body design having the upstanding whirl chamber post extending to an elevation about level with the upper perimeter of the inlet . . _ _ . . _ . . . _ . _ _ . . . _ _ _ . _ _ _ _ _ _ , . _ . , . . . . .
~2'~.'3~
passage it, or slightly above such elevation, the same body can be used for nozzles with incrementally larger or smaller inlet passages.
It will be appreciated by one skilled in the art that the nozzle body will accordingly lend itself to economical product lion since variable size and capacity nozzles may be produced by altering only the inlet passage. It will also be apprise-axed that the nozzle body can be economically manufactured by conventional techniques. While in the illustrated embodiment a plastic injected molded nozzle body 11 has been shown with an integrally formed upstanding whirl chamber post 28, it will be understood that the nozzle body could be readily machined from stock or a metal casting. Moreover, although the thus-treated whirl chamber post is an integral part of the body, alternatively it could be a separate and replaceable item, fixed to the body by thread able engagement or the like.
From the foregoing, it can be seen that the whirl spray nozzle of the present invention is relatively simple and economical to produce, effectively controls air core wear and position, and is adapted to accommodate design variations for different inlet sizes and nozzle spray capacity.
_, _ , ,,, _,, , _ _ _ _ _ _ _ . _ _ . .. .... . . ..
Claims (6)
1. A spray nozzle for producing a hollow conical liquid spray pattern having a central air core comprising a body formed with a whirl chamber having a circular side wall and a bottom wall, said body having an inlet passage for directing liquid in a substantially tangential direction into said circular whirl chamber, means closing the top of said chamber and defining a circular spray discharge orifice disposed coaxially with the circular side walls of said whirl chamber a post extending up warding from said whirl chamber bottom wall, said post have a diameter of about one half the diameter of said whirl chamber and extending upwardly to an elevation about level with the upper perimeter of said inlet passage for guiding pressurized liquid introduced into said whirl chamber from said inlet passage in proper whirling direction about the circular side wall of said whirl chamber, and said post being formed with a recess in the upper end thereof which has an uninterrupted generally circular outermost perimeter and which extends partially into the post in aligned relationship to the axis of said discharge orifice for relieving the lowermost end of the air core of the whirling liquid within said chamber for retaining the proper axial position of the air core and whirling liquid without substantial diffusion of the hollow cone spray pattern and for preventing damage to said body from said air core and whirling liquid.
2. The spray nozzle of claim 1 in which said whirl chamber post is integrally formed in said body.
3. The spray nozzle of claim 2 in which said post is concentrically located in said whirl chamber.
4. A spray nozzle of claim 1 in which said post is formed with a concave spherical recess.
5. The spray nozzle of claim 1 in which said post extends to an elevation slightly above the upper perimeter of said inlet passage.
6. The spray nozzle of claim 1 in which said post extends to an elevation slightly below the upper perimeter of said inlet passage.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US43218582A | 1982-10-01 | 1982-10-01 | |
| US432,185 | 1982-10-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1227235A true CA1227235A (en) | 1987-09-22 |
Family
ID=23715102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000437931A Expired CA1227235A (en) | 1982-10-01 | 1983-09-29 | Whirl spray nozzle |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5990654A (en) |
| BR (1) | BR8305410A (en) |
| CA (1) | CA1227235A (en) |
| DE (1) | DE3334749A1 (en) |
| FR (1) | FR2533838B1 (en) |
| GB (1) | GB2128107B (en) |
| IT (1) | IT1167228B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO177987C (en) * | 1993-05-14 | 1996-01-03 | Norsk Hydro As | Method and apparatus for making metal granules |
| DE10361349B4 (en) | 2003-12-17 | 2005-12-08 | Lechler Gmbh | cone nozzle |
| DE202008012309U1 (en) | 2008-09-17 | 2008-11-13 | Dewath, Michael | Spray unit with adapter |
| JP6044957B2 (en) * | 2013-02-20 | 2016-12-14 | ホソカワミクロン株式会社 | Wet sieving equipment |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB120078A (en) * | 1917-10-22 | 1918-10-22 | John William Stevenson | Apparatus for Spraying or Atomizing Liquids or Fluids and Heating, Cooling or Mixing the same. |
| GB325756A (en) * | 1929-05-13 | 1930-02-27 | Herbert Alexander Thompson | Improvements relating to spraying nozzles or atomizers |
| US2247897A (en) * | 1940-03-22 | 1941-07-01 | Spraying Systems Co | Spray nozzle |
| GB673062A (en) * | 1947-12-31 | 1952-06-04 | Sfindex | Improvements in guiding means for annular flow of fluids |
| GB655370A (en) * | 1947-12-31 | 1951-07-18 | Sfindex | Improved means for guiding the flow of fluid |
| GB662547A (en) * | 1949-03-03 | 1951-12-05 | Lucas Ltd Joseph | Improvements relating to liquid fuel burner nozzles |
| GB679142A (en) * | 1949-03-05 | 1952-09-10 | Urquhart S 1926 Ltd | Improvements relating to fluid projection |
| GB839212A (en) * | 1956-07-02 | 1960-06-29 | Pillard Chauffage | Burner for liquid fuel |
| FR1291299A (en) * | 1961-06-05 | 1962-04-20 | Gestion Des Interets Prives So | Spray nozzle |
| US3326473A (en) * | 1964-08-07 | 1967-06-20 | Spraying Systems Co | Spray nozzle |
| DE1750561B2 (en) * | 1968-05-14 | 1976-08-05 | Hoechst Ag, 6000 Frankfurt | DRUM-SHAPED SPIRAL NOZZLE FOR DIFFUSING POLLUTED LIQUIDS |
| US3762652A (en) * | 1972-08-21 | 1973-10-02 | Barry Wehmiller Co | Nozzle for delivering a conic spray pattern |
| DE2541410C3 (en) * | 1975-09-17 | 1978-05-24 | Danfoss A/S, Nordborg (Daenemark) | Pressure atomizing nozzle for oil burners |
| DE2542240C3 (en) * | 1975-09-23 | 1981-07-30 | Lechler Gmbh & Co Kg, 7012 Fellbach | Hollow cone nozzle for atomizing liquid |
| IT1094411B (en) * | 1977-08-02 | 1985-08-02 | Werding Winfried J | SPRAY NOZZLE, DEVICES INCLUDING SUCH NOZZLE AND PROCEDURE FOR THEIR PRODUCTION |
-
1983
- 1983-09-26 DE DE19833334749 patent/DE3334749A1/en active Granted
- 1983-09-26 GB GB08325682A patent/GB2128107B/en not_active Expired
- 1983-09-29 CA CA000437931A patent/CA1227235A/en not_active Expired
- 1983-09-30 IT IT23081/83A patent/IT1167228B/en active
- 1983-09-30 JP JP58180933A patent/JPS5990654A/en active Granted
- 1983-09-30 BR BR8305410A patent/BR8305410A/en not_active IP Right Cessation
- 1983-10-03 FR FR8315703A patent/FR2533838B1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5990654A (en) | 1984-05-25 |
| GB2128107B (en) | 1985-12-18 |
| IT8323081A1 (en) | 1985-03-30 |
| FR2533838A1 (en) | 1984-04-06 |
| GB2128107A (en) | 1984-04-26 |
| FR2533838B1 (en) | 1987-01-23 |
| JPH0318503B2 (en) | 1991-03-12 |
| DE3334749C2 (en) | 1992-01-02 |
| DE3334749A1 (en) | 1984-04-26 |
| IT8323081A0 (en) | 1983-09-30 |
| IT1167228B (en) | 1987-05-13 |
| BR8305410A (en) | 1984-05-15 |
| GB8325682D0 (en) | 1983-10-26 |
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